eried postedCan you test http://arduino.cc/forum/index.php/topic,118440.0.html ? I upgraded the 'uploader' in that modded version. I had a similar problem (frequently) with 1.0.1 and my 2560 but Samueldw's arduino never worked. /quote

Just tried that and it still will not upload to a Mega 2560. No problem with a Uno or a Uno Pro. I have just rebuilt the Mega program so it does not use any 1.0.1. parts so I can upload with the old 0022. Do like that SRAM estimate though after getting caught out on one sketch.Many thanksDougie L

Very weird, you think I can remote control your machine via Teamviewer to check something? I want to fix 1.0.1 for mega 2560, works with mine, but it will be nice to get all boards working

Sorry for late reply. Sorry again but no one gets remote access to any of my machines. Not personal but it just does not happen. ..Another report has been posted about a similar problem again with a Mega. To my mind its either the 1.0.1 ide or an install problem.Dougie l

I've suffered enough ... my mega2560 revision2 and IDE 1.0.1. I have four mega2560's and i have updated the 8u2 usbserial firmware (.hex RAW from github) in two of them and they still hang with the following verbose on upload:

and the IDE never rcovers until the USB is disconnected. Once, i pressed RESET on the mega2560 while it was in the hang and it then continued but i haven't been able to replicate that again - though i am certain it was after the first Send: and no Recv: and before the second.

Also, I don't know if it is signifcant, but i believe the verbose above is the first failed upload after a successful one. The subsequent uploads that fail don't appear to have that first ignored Send. This is verbose too, and it is more common:

... I managed the 8u2 reflash with FLIP. Before that i embarked on the LUFA route but that proved beyond me at the need for doxygen.. and the intricacies beat me.. I write that so that you might know the limit of my ability......

i think there is some significance in the Serial library or perhaps specifically the Stream class (sic?? limit of my understanding and terminology), as it seems all sketches seem to load perfectly if i comment out all references to LiquidCrystal and Serial. .. course the code doesn´t do much for me then but it might be signifcant ..

If i do once or twice get the code to burn properly, my code works well and does all i want... i am now only make tweaks to character positions on the lcd or eg. to a "second screen" display if you hold the pressbutton rather than just press it. That's abstract, but it makes my point that the code is not intrinsically flawed.

Help? What next? I am reticent to go to yet another version of Arduino IDE i now have 0022 (old normal), antipasto (for toushscreen) and now 1.0.1 ... But maybe of course i must.